Sansfiction
So, the content canon to UNDERTALE wasn't enough for you? Worry not, weary internet traveller. There is plenty more Sans to see. Fans from far and wide are writing Sans into the stories they want to read. Hopefully you can find something you like, too!
Fanfiction Websites
Here are some popular English-language sites, linking directly to the Sans tag!
AO3 Tags
Like I said, Archive of Our Own is the place to go. That doesn't mean every story is good... just that you have the best odds at finding something better than decent. It boasts the highest volume of content. Its sorting system remains unsurpassed. I know for a fact that AO3 hosts at least five (5) Sansfictions worth reading.
But you want to explore the site for yourself, don't you? Don't be intimidated, it's fun! And I've compiled a gigantic list of Sans-related tags to get you started. Yellow highlights indicate a personal favourite of mine.
General
Here are some basic tags to get you started on your Sansfic Journey. They deal with things related directly to the world of UNDERTALE.
Tip: Add "canon compliant" or "character study" to your search for maximum results!
- Sans Makes Puns
(WARNING: Few puns are original or funny.) - Sans' Backstory
- Scientist Sans
- Sans' Illegal Hot Dog Stand
- "Let Sans Rest" Day
- Classic Sans
(i.e. not an AU version)
Relationships & Roles
Here are some more basic tags, this time delineating Sans's relationships to other characters and role within the story.
Attitudes & Characterisation
We're going a bit deeper now... These tags describe how Sans will behave in the story— his overall vibe and dynamic with other characters.
Tip: Add "fluff" or "angst" to your search to set the mood!
Angst & Hard Times
Do you like to see Sans suffer??? Me too! Here's a whole host of tags that show him enduring all kinds of pain and unpleasant emotions.
Tip: Mind each story's rating and warnings! Use the filters to exclude anything you don't want to see.
- Poor Sans
(i.e. pitiful, not necessarily impoverished) - Sans Angst
- Sans Tries (Hard/His Best)
- Sans Gives Up
- Sans Makes Bad Decisions
- Sans is Having a Bad Time
- Sans Being an Asshole
- Sans Being a Little Shit
- Sans is So Done
- Insecure Sans
For the Fangirls
Do you want to smooch Sans the Skeleton? Me too!!! These romantic tags will lead you gently by the hand to stories of courting Sans (and more).
Tip: If you only want to see stories of the Classic/Original Sans... good luck LOL. It's really hard to exclude the AU tags.
Sans Doing Bad Things
Do you ever wish Sans was EVIL? Me too!!! Advance warning for dark stories and out-of-character actions.
- Sadistic Sans
- Crazy Sans
- Sans Being a Murderer (Not to be confused with Murder Sans or Killer Sans...! Those are AU characters (who also are murderers).)